one reason i'd say a big ahead set would be the real tester is because when you have two guys (of the same caliber) going at it in a long race, and there neck and neck at the finish line, say one or two racks away, does the result really determine the better player, or just the guy who got the better rolls off the last 2 racks? thats just one 'for instance' though. the other reason i'd say a long ahead set is better is b/c when 2 killers are playing for say 12 hours, and they're still even, the one who doesn't frustrate, the one who's still got that killer instinct, is gonna show that he's the better player, hands down. just my .02